uppose that the most fundamental and general principle of a science had been known for over a century and had long since become a main basis for understanding and research by scientists in that field. You would surely assume that the principle would be taken as a matter of course by everyone with even a nodding acquaintance with the science. It would obviously be taught everywhere as basic to the science at any level of education. If you think that about (...) biology, however, you are wrong. (shrink)

Is art a form of communication? If so, what does art express or represent? How should we interpret the meaning of works created by more than one artist? Is art an adaptation, via natural selection? In what ways is art similar to—and different from—language? Art as Communication: Aesthetics, Evolution, and Signaling employs information theory, the theory of evolution, and the newly developed sender-receiver model of communication to reason about art, aesthetic behavior, and its communicative nature. Shawn Simpson considers whether (...) art, from a biological point of view, is the province of only humans or whether animals might reasonably be said to create art. Examining the work of evolutionary biologists, art theorists, linguists, and philosophers—including Charles Darwin, Stephen Davies, H. Paul Grice, and others—he addresses how well different theories of communication explain meaning and expression in art and argues that art is much more continuous with other forms of communication than previously thought. (shrink)

The longstanding species problem in biology has a history that suggests a solution, and that history is not the received history found in many texts written by biologists or philosophers. The notion of species as the division into subordinate groups of any generic predicate was the staple of logic from Aristotle through the middle ages until quite recently. However, the biological species concept during the same period was at first subtly and then overtly different. Unlike the logic sense, which relied (...) on definitions of the essence of both genus and species, biological species from the time of Epicurus were consistently considered to involve a reproductive element: in short, living species relied not on essential definitions, but on the generative cause, which might not be definable. I term this the generative conception of species: species were the generation by reproduction of form. This undercuts the claim that species before Darwin were essentialist, and divorces the notion of a type from that of essence. In fact, as late as the end of the nineteenth century, logicians explicitly treated biological “species” as a homonym only of logical essentialist species, and permitted considerable deviation from the type or form. At every point, species in logic were thought to be a subset, in effect, of some more general notion. I sketch a history of both philosophical and biological traditions of the species concept, before turning to the current conceptions. These are reconsidered in the light of this history, and in particular Mayr’s changing views are shown to be somewhat Whiggish, historiographically. Of the many touted biological species concepts, only one of which (Mayr’s) is called _the_ Biological Species Concept, none appears to capture all the relevant facts, intuitions, and operational requirements of biology. Cladistic conceptions, however, have much in common with the older philosophical literature, in that the natural group of cladism is the clade, or monophyletic group. After considering the Individuality Thesis, and the metaphysics of species, we see that species are the most particular terminal taxa in a clade, and that they are “defined” in terms of the particular synapomorphies, or evolved characters, that are causally responsible for keeping the lineages that organisms form distinct from one another. In this way, we can remain within the generative conception of species that has been in play for over two millennia, and yet avoid the pitfalls of prior attempts to find a universal conception of species. (shrink)

Do traits evolve because they are good for the group, or do they evolve because they are good for the individual organisms that have them? The question is whether groups, rather than individual organisms, are ever “units of selection.” My exposition begins with the 1960’s, when the idea that traits evolve because they are good for the group was criticized, not just for being factually mistaken, but for embodying a kind of confused thinking that is fundamentally at odds with the (...) logic that Darwin’s theory requires. A counter-movement has arisen since the 1960’s, called multi-level selection theory, according to which selection acts at multiple levels, including the level of the group. After discussing the 1960’s attack on group selection and the concept’s subsequent revival, I examine Darwin’s views on the subject. I discuss what Darwin says about four examples: human morality, the barbed stinger of the honeybee, neuter workers in species of social insect, and the sterility of many interspecies hybrids. I argue that Darwin defended hypotheses of group selection in the first three problems, but rejected it in the fourth. I also discuss Darwin’s general views about the role of group selection in evolution. (shrink)

Abstract. Augustine, and following him some major theologians of the early Christian church, noted the apparent discrepancies between the first two chapters of Genesis and suggested an interpretation for these chapters significantly different from the literal. After examining a selection of the relevant texts, we shall follow the later fortunes of this interpretation in brief outline, figuring in particular an unlikely trio: Suarez, St. George Mivart, and Thomas Henry Huxley. Moral: Darwinian theory might plausibly be construed as implementing, unawares, a (...) suggestion from that other Christian tradition. (shrink)

En obras fundamentales como On the Origin of Species (1859), The Descent of Man (1871) y The Expression of the Emotions in Man and Animals (1872), Charles Darwin establece un claro posicionamiento anti-antropocéntrico basado en la continuidad evolutiva entre animales-humanos, y entre todos los organismos incluyendo a la especie humana. No obstante, diversos teóricos de la síntesis evolutiva moderna, los neodarwinistas, entre ellos George Gaylord Simpson y Bernhard Rensch, vuelven a instaurar el antropocentrismo en el corazón de la (...) teoría de la evolución, aun a expensas de ideas darwinianas fundacionales, restauradas por Stephen Jay Gould. Analizaré el caso para intentar comprender cómo lo que se ha llamado la “segunda herida narcisista” infringida por Darwin a la humanidad opera en este intento que busca hacer coincidir biología y antropocentrismo en el siglo XX, a costa del propio pensamiento del padre de la biología. Para dar sentido a esta reformulación del antropocentrismo contemporáneo, seguiremos algunas pistas para comprender cómo en la cultura occidental se produce una antinomia entre dos ideas producidas en diferentes momentos de su historia intelectual: que el hombre es el centro de la naturaleza y que no lo es, escapando en ciertos aspectos a su biología mediante la excepcionalidad. La tesis de la continuidad biológica presentada por Darwin es una de las marcas más importantes de la revolución epistemológica que lleva su nombre, y aun así los herederos de su revolución la traicionan. (shrink)

We investigate the reverse-mathematical status of several theorems to the effect that the natural number system is second-order categorical. One of our results is as follows. Define a system to be a triple A,i,f such that A is a set and i∈A and f:A→A. A subset X⊆A is said to be inductive if i∈X and ∀a ∈X). The system A,i,f is said to be inductive if the only inductive subset of A is A itself. Define a Peano system to be (...) an inductive system such that f is one-to-one and i∉the range of f. The standard example of a Peano system is N,0,S where N={0,1,2,…,n,…}=the set of natural numbers and S:N→N is given by S=n+1 for all n∈N. Consider the statement that all Peano systems are isomorphic to N,0,S. We prove that this statement is logically equivalent to WKL0 over RCA0⁎ source. From this and similar equivalences we draw some foundational/philosophical consequences. (shrink)

The 1920-1960 period saw the creation of the conditions for a unification of disciplines in the area of evolutionary biology under a limited number of theoretical prescriptions: the evolutionary synthesis. Whereas the sociological dimension of this synthesis was fairly successful, it was surprisingly loose when it came to the interpretation of the evolutionary mechanisms per se, and completely lacking at the level of the foundational epistemological and metaphysical commitments. Key figures such as Huxley, Simpson, Dobzhansky, and Rensch only paid (...) lip service to the conceptual dimension of the evolutionary synthesis, as they eventually realized that a number of evolutionary phenomena could not be explained by its narrow theoretical corpus. Apparently, the evolutionary synthesis constituted a premature event in the development of evolutionary biology. Not only are the real achievements of the evolutionary synthesis in need of reevaluation, but this reassessment also has important implications for the historiography of Darwinism and the current debates about the darwinian movement. (shrink)

This chapter explores the history of the H-Evo-Devo Theory that covers the late nineteenth century to mid-twentieth century, a crucial period intertwined with the emergence and establishment of the Modern Synthesis. First, it challenges the narrative of the “synthesis” between Darwinism and Mendelism, shedding light on the significant role played by anti-Darwinian theories such as neo-Lamarckism, orthogenesis, and saltationism. Notably, it argues that these theories are rooted in an organism-centered perspective, emphasizing the organism’s interaction with its environment and developmental processes (...) to explain the complexities of variation phenomena. In so doing, it concludes that population geneticists did not resolve the issues of Darwinism, as their interpretations were confined to a gene-centered perspective. However, adopting an organism-centered perspective is needed in order to gain insight into the behavior of variation as well as the phenomena of inheritance. Second, it illustrates that Goldschmidt and Schindewolf (representing the Unmodern Synthesis) along with Dobzhansky, Mayr, and Simpson (who represent the Modern Synthesis) formulated their evolutionary ideas under a hierarchical view. Despite their perspectives stemming from different evolutionary frameworks, the following common points are recognized for the emergence of a potential hierarchy theory of evolution: (1) It represents a hierarchy of types, (2) it presents two decoupled evolutionary levels, and (3) it portrays a phylogenetic tree constructed from the top down, rather than bottom up. (shrink)

The Synthetic Theory of Evolution, developed between 1930 and 1950 by Theodosius Dobzhansky (1900-1975), Ernst Mayr (1904-2005) & George G. Simpson (1902-1984), is based on the ideas of Charles Darwin (1809-1882), Alfred Russel Wallace (1823-1913) among others. Although it is a fundamental theoretical framework for explaining the evolution of living beings, its structure has been the subject of debate due to its multiple hypotheses and theoretical assumptions. Currently, criticism of this theory has intensified due to the growing volume (...) of biological data and the emergence of new concepts. Some propose updating it to incorporate this information, but there is no consensus on how to do so. Others suggest alternative approaches, which raises the difficulty of defining which aspects to change. In summary, the structure of the Synthetic Theory of Evolution is a topic that is constantly debated and requires a deeper review to enhance its explanatory capacity in the context of scientific advances and the growing understanding of evolution. This work aims to analyze proposals for restructuring the Synthetic Theory, identify its drawbacks, and provide a synthesis of the current state of the theory. (shrink)

Charles Darwin's On the Origin of Species is unquestionably one of the chief landmarks in biology. The Origin (as it is widely known) was literally only an abstract of the manuscript Darwin had originally intended to complete and publish as the formal presentation of his views on evolution. Compared with the Origin, his original long manuscript work on Natural Selection, which is presented here and made available for the first time in printed form, has more abundant examples and (...) illustrations of Darwin's argument, plus an extensive citation of sources. (shrink)

This book brings together essays on themes of human rights and legal history, reflecting the long and distinguished career as academic writer and human rights activist of Brian Simpson. Written by colleagues and friends in the United States and Britain, the essays are intended to reflect Simpson's own legal interests. The collection opens with biography of Simpson's academic life which notes his major contribution to legal thought, and closes with an account of his career in the United (...) States and a bibliography of his writings. As a tribute to Simpson's varied interests in the law, the collection is grouped around themes in human rights, legal philosophy, and legal history. The human rights papers are concerned with the history of the right of individual petition to the European Court of Human Rights, and recent successes in which Brian Simpson played a part; the evolution of a transnational common law of human rights; the United Nations Convention on the Rights of the Child and the interpretation of the provisions on identity in France and England; the suspension of human rights which would have occurred, had the emergency War Zone Courts scheme been brought into effect during wartime; historical resistance to colonial laws in Papua New Guinea; and the ratio decidendi of the story of the Prodigal Son. Historical themes are found in essays concerned with three nineteenth-century Lord Chancellors; in two essays relating to the fate of the civil jury on either side of the Atlantic which provide a fascinating comparison; in the 'battle of the books' which led to changes in eighteenth-century copyright law; and judicial rivalry between King's Bench and Common Pleas in the early modern period. (shrink)

Complementing the publication of Darwin's notebooks and correspondence, this work provides access to the last remaining unpublished source of Darwin manuscript materials. It is a catalog to and a complete transcription of the marks and annotations he made in the margins of his books. The margin comments throw light on Darwin's immediate reactions to his reading matter; further comments on slips of paper stuck inside the covers of the books reveal more considered evaluation. These comments are also (...) fully transcribed. Annotation copyrighted by Book News, Inc., Portland, OR. (shrink)

Trust and trustworthiness are core social phenomena, at the heart of most everyday interactions. Yet they are also puzzling: while it matters to us that we place trust well, trusting people who will not let us down, both also seem to involve morally driven attitudes and behaviours. Confronted by whether I should trust another, this tension creates very practical dilemmas. In Trust, Thomas Simpson addresses the foundational question, why should I trust? Philosophical treatments of trust have tended to focus (...) on trying to identify what the attitude of trust consists in. Simpson argues that this approach is misguided, giving rise to merely linguistic debates about how the term 'trust' is used. Instead, he focuses attention on the ways that trust is valuable. The answer defended comprises two claims, which at first seem to be in tension. One is a form of evidentialism about trust: normally, your trust should be based on the evidence you have for someone's trustworthiness. But, second, someone's word is normally enough to settle for you whether you should trust them. Social norms of trustworthiness explain why both are normal. Methodologically innovative, Trust also develops two applications of the account, addressing how cultures of trust can be sustained, and the implications of trust in God. While it is a philosophical essay, the book is written in a way that presumes no prior knowledge of philosophy, to be accessible to the scholars from the many disciplines also attracted and puzzled by trust. (shrink)

The Politics, Aristotle's classic work on the nature of political community, has been a touchstone of Western debates about society and government. Here, Peter Simpson presents a thorough analysis of the logical structure of the entire text and each of its constitutive arguments and conclusions. A valuable commentary on the philosophical argument in the Politics, the book will also serve as a sound basis for future study of Aristotle's political thought.

Among the works on ethics in the Aristotelian corpus, there is no serious dispute among scholars that the "Eudemian Ethics "is authentic. The "Eudemian Ethics "is" "increasingly read and used by scholars as a useful support and confirmation and sometimes contrast to the "Nicomachean Ethics." Yet, it remains a largely neglected work in the study of Aristotle's ethics, both among scholars and moral philosophers. Peter L. P. Simpson provides an analytical outline of the entire work together with summaries of (...) each individual section, making the overall structure and detailed argument clear. His translation and explanatory notes include the common books that the "Eudemian" "Ethics" shares with the "Nicomachean." This translation contains renderings of words and phrases, and proposals for emending the text that differ from what other translators and scholars have adopted. This translation is literal, without expansion or paraphrase, and yet also readable. A readable but literal translation is necessary because in the "Eudemian Ethics," more than usual in Aristotle's writings, the logic of the argumentation can turn on the peculiar wording or order. Simpson explains the argumentation where necessary in notes and separate explanatory comments. This book is a fresh, twenty-first-century rendition of the work of one of the most eminent philosophers of all time. (shrink)

This book aims to develop the tradition of philosophical hermeneutics, the theoretical account of interpretive (as opposed to explanatory) understanding--the account of meanings and contexts rather than causes and predictions--usually restricted to the domain of literary and textual analysis, in new directions by exploiting its potential as an instrument of critique. It refutes commonly held claims that hermeneutic analyses are necessarily relativistic, Eurocentric, or critically impotent and demonstrates how hermeneutic procedures can inform analyses of urgent current and cross-cultural issues such (...) as the biology of race, female genital excision, and the so-called "culture of poverty" thesis. Lorenzo Simpson demonstrates that a robust methodology of philosophical hermeneutics is well positioned to intervene in critical political and social issues in global ethics and justice in concert with critical theory's emancipatory aims. (shrink)

The pandemic has been the most vivid agent of change that many of us have known. But it has not changed everything: plenty of the institutions, norms, and practices that sustain racial capitalism, settler colonialism, and cisheteropatriarchy have either weathered the storm of the crisis or been nourished by its effects. And yet enough has changed for us to see that the pandemic has profoundly recontextualised those structures and systems of violence, bringing us into a fresh negotiation with, for example, (...) the question of how we discuss and imagine freedom. Responding in part to this unexpected provocation, activist-scholars Robyn Maynard and Leanne Betasamosake Simpson forged a collaboration from the lockdown of 2020, corresponding by letter to create their forthcoming book, Rehearsals for Living, due to be published by Haymarket Books (US) and Knopf (Canada) in 2022. In this interview, we asked them to explain the epistolary form of the book and expand on the concept of “rehearsal”, before inviting them to reflect on a series of issues that animate our current crises: the politics of recognition; the notion of apocalypse; ways to disrupt linear temporalities; practises of reciprocity against proprietary logics; the gendered violence of state apparatuses; and worldbuilding as a method of resistance. In their expansive answers, Robyn and Leanne draw on their experiences as organisers and educators, commenting on anticolonial struggles, the Movement for Black Lives, and the rise of abolition discourse. Stressing the need to build a multiplicity of shared homespaces in the face of racial/colonial capitalism and organized abandonment, they challenge us to rethink the predicaments and possibilities of the present, enabling us to imagine futures liberated of extractivist, carceral governance – “planting more liberatory futures in the present”, as Robyn puts it. The task of sowing those seeds is a collective praxis of rewriting the narratives that constitute us, refusing to hear that nothing can change and insisting that everything must. (shrink)

The theory of psychological hylomorphism has recently been advanced by David Charles as a viable alternative to physicalist and dualist theories of mind. According to Charles, a human or animal is a psycho-physical whole whose mental and physical properties are defined with reference to the whole. This is because it is a hylomorphic composite of matter and form, where the form contains the material principles of the composite in its definition. In this paper, we raise a difficulty concerning the individuation (...) of forms in light of the quantum theory of matter, asking whether the phenomenon of quantum entanglement gives us reason to doubt that the micro-physical properties of a human or animal derive (solely) from the psycho-physical properties of a middle-sized whole. We suggest several ways of amending the theory of psychological hylomorphism to accommodate entanglement, including a proposal by Simpson, in which the cosmos counts as a psycho-physical whole, and a proposal by Koons, in which distinct substances share a ‘group form.’. (shrink)

Trust is difficult to define. Instead of doing so, I propose that the best way to understand the concept is through a genealogical account. I show how a root notion of trust arises out of some basic features of what it is for humans to live socially, in which we rely on others to act cooperatively. I explore how this concept acquires resonances of hope and threat, and how we analogically apply this in related but different contexts. The genealogical account (...) explains both why the notion has such value for us and why it is difficult to define. (shrink)

Adam Smith (1723-1790) is perceived, through his best-known book, An Inquiry into the Nature and Causes of the Wealth of Nations, as the founder of economics as a science. His thought has shaped modern ideas about the market economy and the role of the state in relation to it. Yet Smith needs to be recognized as more than this, as a man of letters, moralist, historian, and critic, as well as an economist, if we are to get full value for (...) his ideas and perspectives in contemporary applications. Ian Simpson Ross is the biographer of Lord Kames, Smith's patron, and of the Scottish poet William Dunbar, and has edited, with E C Mossner, Smith's correspondence for the Glasgow edition of his works. In this, the first full-scale biography of Adam Smith for a hundred years, Ross brings his subject in to historical light as a thinker and author by examining his family circumstance, education, career, and social and intellectual circle, including David Hume and Francois Quesnay, revealed through his correspondence, archival documents, the reports of contemporaries, and the record of his publications. Readers will meet Smith as a student at a lively Glasgow and sleepy Oxford; freelance lecturer in rhetoric; innovative university teacher; tutor travelling abroad with a Duke; acclaimed political economist; policy advisor to governments during and after the American crisis; and finally, if paradoxically in view of his tenets, a Commissioner of Customs coping with the free traders in the smuggling business. This is the life of a Scottish moral philosopher whose legacy of thought concerns and affects us all. Its lively and informed account will appeal to those interested in the social and intellectual milieu of the eighteenth century, and in scottish history. Economists and philosophers will find much to read about the history of their disciplines, supported by full documentation. (shrink)

On 27th December 1831, HMS Beagle set out from Plymouth under the command of Captain Robert Fitzroy on a voyage that lasted nearly 5 years. The purpose of the trip was to complete a survey of the southern coasts of South America, and afterwards to circumnavigate the globe. The ship's geologist and naturalist was Charles Darwin. Darwin kept a diary throughout the voyage in which he recorded his daily activities, not only on board the ship but also during (...) the several long journeys that he made on horseback in Patagonia and Chile. His entries tell the story of one of the most important scientific journeys ever made with matchless immediacy and vivid descriptiveness. (shrink)

In recent work Mary Kate McGowan presents an account of oppressive speech inspired by David Lewis's analysis of conversational kinematics. Speech can effect identity-based oppression, she argues, by altering 'the conversational score', which is to say, roughly, that it can introduce presuppositions and expectations into a conversation, and thus determine what sort of subsequent conversational 'moves' are apt, correct, felicitous, etc., in a manner that oppresses members of a certain group (e.g. because the suppositions and expectations derogate or demean members (...) of that group). In keeping with the Lewisian picture, McGowan stresses the asymmetric pliability of conversational scores. She argues that it is easier to introduce (for example) sexist presuppositions and expectations into a conversation than it is to remove them. Responding to a sexist remark, she thus suggests, is like trying to "unring a bell". I begin by situating McGowan's work in the wider literature on speech and social hierarchy, and explaining how her account of oppressive speech improves upon the work of others in its explication of the relationship between individuals' verbal conduct and structurally oppressive social arrangements. I then propose an explanation and supportive elaboration of McGowan's claims about the asymmetric pliability of conversations involving identity-oppressive speech. Rather than regarding such asymmetry as a sui generis phenomenon, I show how we can understand it as a consequence of a more general asymmetry between making things salient and un-salient in speech, and I show how this asymmetry also operates in various cases that interested Lewis. (shrink)

In disagreements about trivial matters, it often seems appropriate for disputing parties to adopt a ‘middle ground’ view about the disputed matter. But in disputes about more substantial controversies (e.g. in ethics, religion, or politics) this sort of doxastic conduct can seem viciously acquiescent. How should we distinguish between the two kinds of cases, and thereby account for our divergent intuitions about how we ought to respond to them? One possibility is to say that ceding ground in a trivial dispute (...) is appropriate because the disputing parties are usually epistemic peers within the relevant domain, whereas in a more substantial disagreement the disputing parties rarely, if ever, qualify as epistemic peers, and so ‘sticking to one’s guns’ is usually the appropriate doxastic response. My aim in this paper is to explain why this way of drawing the desired distinction is ultimately problematic, even if it seems promising at first blush. (shrink)

In this follow up to The Eudemian Ethics of Aristotle, Peter L. P. Simpson centers his attention on the basics of Aristotelian moral doctrine as found in the Great Ethics: the definition of happiness, the nature and kind of the virtues, pleasure, and friendship. This work's authenticity is disputed, but Simpson argues that all the evidence favors it. Unlike the Nicomachean and Eudemian Ethics, Aristotle wrote the Great Ethics for a popular audience. It gives us insight less into (...) Aristotle the theoretician than into Aristotle the pedagogue. For this reason, the Great Ethics has distinct advantages as an introduction to Aristotelian ethical thinking: it is simpler and clearer in its argumentation, matters such as the intellectual virtues are made suitably secondary to the practical focus, the moral virtues come through with a pleasing directness, and the work's syllogistic formalism gives it a transparency and accessibility that the other Ethics typically lack. Arius' Epitome, which relies heavily on this work, helps confirm its value and authenticity. Because the Great Ethics is generally neglected by scholars, less has been done to clear up its obscurities or to expose its structure. But to ignore it is to lose another and more instructive way of approaching and appreciating Aristotle's teaching. The translation is prefaced by an analytic outline of the whole, and the several sections of it are prefaced by brief summaries. The commentary supplies fuller descriptions and analyses, sorting out puzzles, removing misunderstandings, and resolving doubts of meaning and intention. This book is a fresh rendition of the work of the preeminent philosopher of all time. (shrink)

This paper examines two recent contributions to the hate speech literature – by Steven Heyman and Jeremy Waldron – which seek a justification for the legal restriction of hate speech in an account of the way that hate speech infringes against people’s dignity. These analyses look beyond the first-order hurts and disadvantages suffered by the immediate targets of hate speech, and consider the prospect of hate speech sustaining complex social structures whose wide-scale operations lower the social status of members of (...) targeted groups. In Heyman’s and Waldron’s accounts we find plausible insights into the nature of identity-based social hierarchies, and the harms that redound to subordinated people under the operations of such hierarchies. I argue, however, that both analyses are unsuccessful as justifications for the restriction of hate speech, because they do not ultimately provide reason to think that hate speech is responsible for creating or sustaining identity-based social hierarchies. (shrink)

Let ω be the set of natural numbers. For functions f, g: ω → ω, we say f is dominated by g if f < g for all but finitely many n ∈ ω. We consider the standard “fair coin” probability measure on the space 2ω of in-finite sequences of 0's and 1's. A Turing oracle B is said to be almost everywhere dominating if, for measure 1 many X ∈ 2ω, each function which is Turing computable from X is (...) dominated by some function which is Turing computable from B. Dobrinen and Simpson have shown that the almost everywhere domination property and some of its variant properties are closely related to the reverse mathematics of measure theory. In this paper we exposit some recent results of Kjos-Hanssen, Kjos-Hanssen/Miller/Solomon, and others concerning LR-reducibility and almost everywhere domination. We also prove the following new result: If B is almost everywhere dominating, then B is superhigh, i. e., 0″ is truth-table computable from B ′, the Turing jump of B. (shrink)

This article develops a social epistemological analysis of Web-based search engines, addressing the following questions. First, what epistemic functions do search engines perform? Second, what dimensions of assessment are appropriate for the epistemic evaluation of search engines? Third, how well do current search engines perform on these? The article explains why they fulfil the role of a surrogate expert, and proposes three ways of assessing their utility as an epistemic tool—timeliness, authority prioritisation, and objectivity. “Personalisation” is a current trend in (...) Internet-delivered services, and consists in tailoring online content to the interests of the individual user. It is argued here that personalisation threatens the objectivity of search results. Objectivity is a public good; so there is a prima facie case for government regulation of search engines. (shrink)

This is the English (and extended version) of an interview originally published in Estonian in October 2018. In the interview, Simpson summarizes a particular way of defending the practice of no-platforming. The varying appeal of different defences of the practice in different socio-historical contexts (i.e. the UK/US versus a post-Soviet country such as Estonia) is discussed also.

Gathers selections from nine of Darwin's most important books, including writings about coral reefs, the Galapagos Islands, evolution, emotions, and flowers.

The aim and result of this book may perhaps be best described as the dissolution of the idea of persons, at least as 'person' is ordinarily understood. Parfit wishes, partly in response to the impersonalism of modern life, to establish impersonalism in moral theory. But such impersonalism will in fact, he maintains, make things go better for persons.

Charles Robert Darwin (1809–1882) has been widely recognized since his own time as one of the most influential writers in the history of Western thought. His books were widely read by specialists and the general public, and his influence had been extended by almost continuous public debate over the past 150 years. New York University Press's new paperback edition makes it possible to review Darwin's public literary output as a whole, plus his scientific journal articles, his private notebooks, (...) and his correspondence. This is complete edition contains all of Darwin's published books, featuring definitive texts recording original pagination with Darwin's indexes retained. The set also features a general introduction and index, and introductions to each volume. (shrink)

This paper considers the phenomenon of lying and the implications it has for those subjects who are capable of lying. It is argued that lying is not just intentional untruthfulness, but is intentional untruthfulness plus an insincere invocation of trust. Understood in this way, lying demands of liars a sophistication in relation to themselves, to language, and to those to whom they lie which exceeds the demands on mere truth-tellers.

We investigate the provability or nonprovability of certain ordinary mathematical theorems within certain weak subsystems of second order arithmetic. Specifically, we consider the Cauchy/Peano existence theorem for solutions of ordinary differential equations, in the context of the formal system RCA 0 whose principal axioms are ▵ 0 1 comprehension and Σ 0 1 induction. Our main result is that, over RCA 0 , the Cauchy/Peano Theorem is provably equivalent to weak Konig's lemma, i.e. the statement that every infinite {0, 1}-tree (...) has a path. We also show that, over RCA 0 , the Ascoli lemma is provably equivalent to arithmetical comprehension, as is Osgood's theorem on the existence of maximum solutions. At the end of the paper we digress to relate our results to degrees of unsolvability and to computable analysis. (shrink)

A mass problem is a set of Turing oracles. If P and Q are mass problems, we say that P is weakly reducible to Q if every member of Q Turing computes a member of P. We say that P is strongly reducible to Q if every member of Q Turing computes a member of P via a fixed Turing functional. The weak degrees and strong degrees are the equivalence classes of mass problems under weak and strong reducibility, respectively. We (...) focus on the countable distributive lattices P w and P s of weak and strong degrees of mass problems given by nonempty Π 1 0 subsets of 2 ω . Using an abstract Gödel/Rosser incompleteness property, we characterize the Π 1 0 subsets of 2 ω whose associated mass problems are of top degree in P w and P s , respectively. Let R be the set of Turing oracles which are random in the sense of Martin-Löf, and let r be the weak degree of R. We show that r is a natural intermediate degree within P w . Namely, we characterize r as the unique largest weak degree of a Π 1 0 subset of 2 ω of positive measure. Within P w we show that r is meet irreducible, does not join to 1, and is incomparable with all weak degrees of nonempty thin perfect Π 1 0 subsets of 2 ω . In addition, we present other natural examples of intermediate degrees in P w . We relate these examples to reverse mathematics, computational complexity, and Gentzen-style proof theory. (shrink)

The Sentimental Life of International Law is about our age-old longing for a decent international society and the ways of seeing, being, and speaking that might help us achieve that aim. This book asks how international lawyers might engage in a professional practice that has become, to adapt a title of Janet Malcolm's, both difficult and impossible. It suggests that international lawyers are disabled by the governing idioms of international lawyering, and proposes that they may be re-enabled by speaking different (...) sorts of international law, or by speaking international law in different sorts of ways. In this methodologically diverse and unusually personal account, Gerry Simpson brings to the surface international law's hidden literary prose and offers a critical and redemptive account of the field. He does so in a series of chapters on international law's bathetic underpinnings, its friendly relations, the neurotic foundations of its underlying social order, its screened-off comic dispositions, its anti-method, and the life-worlds of its practitioners. Finally, the book closes with a chapter in which international law is re-envisioned through the practice of gardening. All of this is put forward as a contribution to the project of making international law, again, a compelling language for our times. (shrink)